first, milk has a calming effect on human body. People will feel a sense of calm after eating milk, so drinking a glass of milk at night before going to bed will play a role in calming the nerves and promoting sleep.

Second, milk can cure the diseases of gastric and duodenal ulcer. Milk also has anti-gastric cancer function.

Third, milk and fermented yogurt can reduce cancer. Among carcinogens, 85% are mutagenic, so drinking milk or yogurt often has cancer prevention effect.

Fourthly, drinking milk for infants can promote their intellectual development. When lactose in milk is digested, one molecule of glucose and one molecule of galactose are produced. Galactose is a component of brain and nerve tissue. Therefore, milk can promote intellectual development.

Fifth, drinking milk for children can promote their physical growth and development. According to the experiment, the weight and height of children who drink 5 ml of milk every day are nearly doubled compared with those who don't drink milk.

Sixth, drinking milk for adults and the elderly can resist aging and prolong life. According to the latest research results, there is a bioactive substance in milk, namely SOD. This active substance can eliminate a harmful substance called "free radical" in the body, enhance the immune function of the body and promote metabolism, so it can resist aging and prolong life. In addition, milk also has the functions of beauty care and beauty.